DELTA 1 DEB, 21461

Orbit data source: Space-Track

DELTA 1 DEB, 21461 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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Iframe URL

https://www.satcat.com/sats-embedded/21461?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21461, 1975-052EV

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1975-06-12 (51 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 DELTA 1 DEB
1 21461U 75052EV  26082.23067830  .00000224  00000-0  58713-3 0  9995
2 21461  99.7264 183.7204 0204661 253.7956 161.4503 13.20478135679358

Epoch: 2026-03-23T05:32Z

TLE epoch observation values (Epoch: 2026-03-23T05:32:10.605Z)

Latitude

54.86699°

Longitude

-94.07659°

Altitude

1,338.903 km

Speed

7.123 km/s

True Right ascension

11h 18m 46s

True Declination

54° 43' 02"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

01:23:08

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,334.925 km

Perigee altitude

1,025.544 km

Semi-major axis

7,558.372 km

Eccentricity

0.02047

Inclination

99.7264°

RAAN

183.7204°

Arg. of periapsis

253.7956°

True anomaly

162.17868°

Mean anomaly

161.4503°

Eccentric anomaly

161.81623°

Mean motion

3.30294 °/min

Orbital period

108.99 mins

BSTAR

0.00058713

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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

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DELTA 1 DEB Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
13 mins	2026-03-23 20:23:16.720Z	3.235° NNE	2026-03-23 20:30:16.720Z	293.424° NW	36.05°	2026-03-23 20:36:16.720Z	225.805° WSW
10 mins	2026-03-24 05:03:16.720Z	101.974° ESE	2026-03-24 05:08:16.720Z	54.88° ENE	22.825°	2026-03-24 05:13:16.720Z	11.589° NNE
14 mins	2026-03-24 06:48:16.720Z	173.163° S	2026-03-24 06:54:16.720Z	235.617° WSW	43.624°	2026-03-24 07:02:16.720Z	341.509° N
9 mins	2026-03-24 18:17:16.720Z	52.317° ENE	2026-03-24 18:21:16.720Z	93.012° ESE	22.209°	2026-03-24 18:26:16.720Z	140.703° SSE
12 mins	2026-03-24 20:03:16.720Z	6.139° NNE	2026-03-24 20:09:16.720Z	283.25° WNW	41.881°	2026-03-24 20:15:16.720Z	212.482° SW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out DELTA 1 DEB, 21461 on other resources

View DELTA 1 DEB, 21461 on Heavens-Above

View DELTA 1 DEB, 21461 on Keep Track

View DELTA 1 DEB, 21461 on Celestrak

View DELTA 1 DEB, 21461 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

DELTA 1 DEB, 21461

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-03-23T05:32:10.605Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 21461 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago